Red mud filtering device

Abstract

The utility model belongs to the technical field of aluminum oxide production, and particularly relates to a red mud filtering device which comprises a box body, a feeding pipe and a discharging pipe, an opening I and an opening II are formed in the two sides of the box body respectively, the feeding pipe is arranged at the opening I, the discharging pipe is arranged at the opening II, and the opening I is communicated with the opening II. The interior of the box body is hollow, one end of the box body is detachably provided with a cover plate, the other end of the box body is provided with an opening III, the opening III is provided with a discharging pipe, the interior of the box body is provided with a filter screen, and the opening I and the opening II are respectively arranged right opposite to the filter screen. Produced red mud continuously enters the filtering device from the feeding pipe, the red mud makes contact with the filter screen, small-particle red mud passes through the filter screen and flows into the conveying pump from the discharging pipe, large-particle red mud is located at the front end of the filter screen, the large-particle red mud can be discharged from the discharging pipe by opening the valve body, frequent manual operation is not needed, and the red mud filtering efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of alumina production, and particularly relates to a red mud filtering device. Background Art

[0002] Red mud is an industrial solid waste discharged during the extraction of alumina in the aluminum industry. After the production is completed, the red mud slurry needs to be transported to a settling tank for sedimentation and filtration. Since there are particulate impurities of various sizes in the red mud, a filter needs to be installed in front of the delivery pump during the transportation of the red mud slurry to prevent large particulate matter in the red mud from entering the delivery pump, causing blockage or damage to the accessories of the pump body. The existing technology is to filter the red mud by passing it parallelly into a mesh filter. The small-particle red mud passes through the filter mesh and enters the discharge pipe, while the large-particle red mud is in front of the filter mesh. When a large amount of large-particle red mud accumulates, the worker opens the upper end of the filter and transports the large-particle red mud inside. Although this method can prevent large-particle red mud from entering the delivery pump, it requires workers to frequently clean the red mud in the filter, which is time-consuming and laborious. Content of the Utility Model

[0003] Aiming at the technical problems existing in the background art, the purpose of the utility model is to provide a red mud filtering device, which is convenient for filtering red mud and does not require manual frequent cleaning of the filter.

[0004] To achieve the above purpose, the technical solution provided by the utility model is as follows:

[0005] A red mud filtering device, the filtering device includes a box body, a feed pipe and a discharge pipe. Openings Ⅰ and Ⅱ are respectively arranged on both sides of the box body. The feed pipe is arranged at the position of Opening Ⅰ, and the discharge pipe is arranged at the position of Opening Ⅱ. The interior of the box body is hollow. One end of the box body is detachably provided with a cover plate. An Opening Ⅲ is arranged at the other end of the box body, and a discharge pipe is arranged on the Opening Ⅲ. A filter mesh is arranged inside the box body, and the Opening Ⅰ and the Opening Ⅱ are respectively arranged opposite to the filter mesh.

[0006] Preferably, a clamping groove is arranged inside the box body, and the clamping groove is arranged at the position of Opening Ⅰ, and a pushing component is arranged in the clamping groove.

[0007] Preferably, the pushing component includes a push plate and a driving member. The push plate is arranged inside the box body and at the position of the clamping groove. A connection hole is arranged on the box body, and the driving member is arranged outside the box body. One end of the driving member extends into the connection hole and is connected to the push plate.

[0008] Preferably, through holes are arranged on the push plate, and the through holes are aligned with the Opening Ⅰ.

[0009] Preferably, the push plate assembly further includes a partition structure, which includes a support shaft and a partition. The support shaft is fixedly arranged on the push plate. The partition is rotatably connected to the support shaft, and the partition rotates towards the filter screen.

[0010] Preferably, there are several groups of partition structures. The partition structures are arranged around the through holes, and the partitions can fit together with each other. Several partitions combine into a circle, and the mutual fitting between the partitions can close the through holes.

[0011] Preferably, a rotating groove is arranged on the support shaft, and a connecting ring is arranged at one end of the partition. The connecting ring is rotatably arranged in the rotating groove.

[0012] Preferably, a valve body is arranged on the discharge pipe.

[0013] The utility model has the following advantages and beneficial effects:

[0014] First, in the utility model, the produced red mud continuously enters the inside of the filtering device from the feed pipe. The red mud contacts the filter screen. The small-particle red mud passes through the filter screen and flows into the transfer pump in the direction of the discharge pipe. The large-particle red mud is in front of the filter screen. By opening the valve body, the large-particle red mud can be discharged from the discharge pipe, without frequent manual operation, and the filtering efficiency of the red mud is increased.

[0015] Second, in the utility model, when the red mud is introduced into the filtering device, the partition is pushed open, which does not affect the passage of the red mud. When the introduction of the red mud ends, the return spring drives the partition to reset and closes the through hole. The driving cylinder moves, and the cylinder pushes the push plate towards the filter screen, and the remaining red mud inside the filtering device is pushed onto the filter screen again for secondary filtering, so that the redundant red mud inside the filtering device can be filtered again.

[0016] Third, in the utility model, the structure is simple and the operation is convenient, which is convenient for filtering the red mud. Description of the Drawings

[0017] Figure 1 is a three-dimensional view of a red mud filtering device provided by the utility model;

[0018] Figure 2 is a cross-sectional view of a red mud filtering device provided by the utility model;

[0019] Figure 3 is an internal connection schematic diagram of a red mud filtering device provided by the utility model;

[0020] Figure 4 is a cross-sectional view of the inside of the box body of a red mud filtering device provided by the utility model;

[0021] Figure 5Schematic diagram of the connection structure between the push plate and the partition plate of a red mud filtration device provided by the present utility model;

[0022] Figure 6 Schematic diagram of the partition plate structure of a red mud filtration device provided by the present utility model;

[0023] Figure 7 Schematic diagram of the support shaft structure of a red mud filtration device provided by the present utility model;

[0024] Figure 8 Schematic diagram of the open state of the partition plate of a red mud filtration device provided by the present utility model;

[0025] Figure 9 Schematic diagram of the state where the push plate of a red mud filtration device provided by the present utility model is pushed;

[0026] Icon: 1 - box body, 101 - opening Ⅰ, 102 - opening Ⅱ, 103 - opening Ⅲ, 104 - filter net, 2 - cover plate, 21 - bolt, 3 - card slot, 31 - connection hole, 4 - push plate, 41 - through hole, 42 - support shaft, 421 - rotation groove, 422 - return spring, 43 - partition plate, 431 - connection ring, 5 - cylinder, 6 - feed pipe, 7 - discharge pipe, 8 - discharge pipe, 81 - valve body. Detailed implementation manners

[0027] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model.

[0028] Therefore, the detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the present utility model to be protected, but merely represents the selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the scope of protection of the present utility model.

[0029] Embodiment

[0030] As Figure 1 、 2, as shown in Figures 3, 4, 8, and 9, a red mud filtering device, the filtering device includes a box body 1, a feed pipe 6, and a discharge pipe 7. Openings Ⅰ 101 and Ⅱ 102 are respectively arranged on both sides of the box body 1. The feed pipe 6 is arranged at the position of the opening Ⅰ 101, and the discharge pipe 7 is arranged at the position of the opening Ⅱ 102. The interior of the box body 1 is hollow. A cover plate 2 is detachably arranged at one end of the box body 1. An opening Ⅲ 103 is arranged at the bottom end of the box body 1, and a discharge pipe 8 is arranged on the opening Ⅲ 103. A filter screen 104 is arranged inside the box body 1, and the filter screen 104 is arranged on the side close to the opening Ⅱ 102, that is, the filter screen 104 is arranged between the opening Ⅱ 102 and the opening Ⅲ 103; the opening Ⅰ 101 and the opening Ⅱ 102 are respectively arranged opposite to the filter screen 104. Red mud enters the box body 1 from the feed pipe 6 and is filtered through the filter screen 104. The small-particle red mud is discharged from the discharge pipe 7, and the large-particle red mud is discharged from the discharge pipe 8. A delivery pump is connected to the discharge pipe 7, which can suck the red mud inside the box body 1 and make the red mud move towards the discharge pipe 7.

[0031] As Figure 1 , 2 , as shown in Figures 3, 4, 8, and 9, the cover plate 2 is arranged at the upper end of the box body 1. A number of threaded holes are respectively arranged on the cover plate 2 and the box body 1. By screwing in the bolts 21, the cover plate 2 and the box body 1 can be fixed. When the filter screen 104 needs to be replaced, the cover plate 2 can be directly removed, which is convenient for replacing the filter screen 104 and can also avoid the situation where the inside of the box body 1 cannot be dredged when it is blocked.

[0032] As Figure 1 , 2 , as shown in Figures 3, 4, 5, 8, and 9, a clamping groove 3 is arranged inside the box body 1, and the clamping groove 3 is arranged at the position of the opening Ⅰ 101. A pushing component is arranged in the clamping groove 3. The pushing component includes a push plate 4, a driving part, and a partition structure. The push plate 4 is arranged inside the box body 1 and is at the position of the clamping groove 3. A connecting hole 31 is arranged on the box body 1. The driving part is arranged outside the box body 1, and one end of the driving part extends into the connecting hole 31 and is connected to the push plate 4. The driving part is a cylinder 5. The cylinder 5 is fixed to the outer surface of the box body 1 and is arranged on both sides of the opening Ⅰ 101. When the cylinder 5 expands and contracts, it can drive the push plate 4 to move inside the box body 1. A through hole 41 is arranged on the push plate 4, and the through hole 41 is aligned with the opening Ⅰ 101, and the sizes of the through hole 41 and the opening Ⅰ 101 are the same. When filtering the red mud, the feed pipe 6 is directly inserted into the opening Ⅰ 101 and the through hole 41.

[0033] As Figures 1-9As shown, the partition structure includes a support shaft 42 and a partition 43. The support shaft 42 is fixedly arranged on the push plate 4 and at the peripheral position of the through hole 41. The partition 43 is rotatably connected to the support shaft 42, and the partition 43 rotates towards the filter screen 104. A rotation groove 421 is arranged on the support shaft 42. One end of the partition 43 is provided with a connection ring 431. The connection ring 431 is rotatably arranged in the rotation groove 421. A return spring 422 is arranged between the rotation groove 421 and the connection ring 431. One end of the return spring 422 is fixedly connected to the support shaft 42, and the other end is connected to the connection ring 431. There are several groups of partition 43 structures. The partition 43 assemblies are arranged around the through hole 41, and the partitions 43 can be mutually attached. Several partitions 43 are combined into a circle. The mutual attachment between the partitions 43 can close the through hole 41. At the initial position, the partitions 43 are mutually attached. When the partition 43 is forced to rotate, the return spring 422 is compressed. When the force on the partition 43 ends, the return spring 422 resets, causing the partitions 43 to be mutually attached again.

[0034] As Figure 2 , 8 shown, when the feed pipe 6 is inserted into the through hole 41, the feed pipe 6 can push the partition 43 to rotate towards the filter screen 104, enabling the red mud to normally enter the box body 1 for filtration. After the red mud is fed, the feed pipe 6 is retracted and withdrawn from the position of the through hole 41. The return spring 422 resets the partition 43, causing the partitions 43 to contact each other and close the through hole 41. Since the partition 43 can only move towards the filter screen 104, when the partition 43 is closed, the driving cylinder 5 moves. The cylinder 5 pushes the push plate 4 to move in the box body 1, enabling the excess red mud in front of the filter screen 104 to fully contact the filter screen 104, making the filtering effect better.

[0035] As Figure 2 , 9 shown, the discharge pipe 8 is arranged between the filter screen 104 and the push plate 4. A valve body 81 is arranged on the discharge pipe 8. When filtering the red mud, the valve body 81 is closed. After the red mud is filtered, the large - particle red mud is at the front end of the filter screen 104. At this time, the valve body 81 is opened, and the large - particle red mud falls from the position of the discharge pipe 8. At the same time, the driving cylinder 5 can also be moved to make the push plate 4 push the large - particle red mud into the discharge pipe 8.

[0036] In the present utility model, there is also another fixing method, that is, the feed pipe 6 is fixed in the through hole 41. Since when the red mud enters from the feed pipe 6, it has sufficient flow rate and flow volume, it will automatically push the partition 43 to open, enabling the red mud to enter the box body 1 for filtration; conversely, when no red mud enters the feed pipe 6, the return spring 422 resets the partition 43, causing the partitions 43 to contact each other and close the through hole 41. Then, the driving cylinder 5 is used again to push the push plate 4 to move in the box body 1, further realizing the functions of filtration and pushing materials.

[0037] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, various modifications and variations can be made to the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A red mud filtration device, characterized in that, The filtering device includes a box body, a feed pipe and a discharge pipe. Openings Ⅰ and Ⅱ are respectively arranged on two sides of the box body. The feed pipe is arranged at the position of Opening Ⅰ, and the discharge pipe is arranged at the position of Opening Ⅱ. The interior of the box body is hollow. A cover plate is detachably arranged at one end of the box body. An Opening Ⅲ is arranged at the other end of the box body, and a discharging pipe is arranged on the Opening Ⅲ. A filter screen is arranged inside the box body. Opening Ⅰ and Opening Ⅱ are respectively arranged opposite to the filter screen, and the filter screen is arranged between Opening Ⅱ and Opening Ⅲ.

2. The red mud filtration device according to claim 1, characterized in that: A clamping groove is arranged inside the box body, and the clamping groove is arranged at the position of Opening Ⅰ. A pushing component is arranged in the clamping groove.

3. The red mud filtering device according to claim 2, wherein: The pushing component includes a push plate and a driving part. The push plate is arranged inside the box body and at the position of the clamping groove. A connection hole is arranged on the box body, and the driving part is arranged outside the box body. One end of the driving part extends into the connection hole and is connected to the push plate.

4. An iron red mud filtering device according to claim 3, characterized in that: A through hole is arranged on the push plate, and the through hole is aligned with Opening Ⅰ.

5. The red mud filtration device according to claim 3, characterized in that: The push plate assembly further includes a partition structure. The partition structure includes a support shaft and a partition. The support shaft is fixedly arranged on the push plate. The partition is rotatably connected to the support shaft, and the partition rotates towards the filter screen.

6. The red mud filtering device according to claim 5, wherein: There are several groups of the partition structures. The partition structures are arranged around the through hole, and the partitions can be attached to each other. Several partitions are combined into a circle, and the mutual attachment between the partitions can close the through hole.

7. An apparatus for filtering red mud according to claim 5, characterized in that: A rotating groove is arranged on the support shaft. A connecting ring is arranged at one end of the partition. The connecting ring is rotatably arranged in the rotating groove, and a return spring is arranged between the rotating groove and the connecting ring.

8. The red mud filtration device according to claim 3, characterized in that: The discharging pipe is arranged between the filter screen and the push plate, and a valve body is arranged on the discharging pipe.

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